Here you go...
Scoville heat units & Examples
1,500,000–2,000,000 Most law enforcement grade pepper spray, Trinidad Moruga Scorpion
855,000–1,463,700 Naga Viper pepper, Infinity Chilli, Bhut Jolokia chili pepper
350,000–580,000 Red Savina habanero
100,000–350,000 Habanero chili, Scotch bonnet pepper, Datil pepper, Rocoto, Piri Piri Ndungu, Madame Jeanette, Peruvian White
50,000–100,000 Byadgi chilli, Bird's eye chili, Malagueta pepper, Chiltepin pepper, Piri piri (African chili)
30,000–50,000 Guntur chilli, Cayenne pepper, Ají pepper, Tabasco pepper, Cumari pepper (Capsicum Chinese), Katara (spicy)
10,000–23,000 Serrano pepper, Peter pepper, Aleppo pepper
3,500–8,000 Espelette pepper, Jalapeño pepper, Chipotle, Guajillo pepper, Tabasco sauce
1,000–2,500 Anaheim pepper, Poblano pepper, Rocotillo pepper, Peppadew, Sriracha sauce
100–900 Pimento, Peperoncini, Banana pepper
No significant heat Bell pepper, Cubanelle, Aji dulce
If I'm cooking a chilli (using stewing beef, not mince) I always use Habaneros - the flavour they give is fabulous.